Participants error fix

[OsuohaNnamdi]

Problem
Participants list doesn't update when view is open during joins/leaves

CallActivity.kt

• Initializes the horizontal participant list (RecyclerView)
• Observes viewModel.participants Flow and updates UI on changes.
• Configures the primary speaker view
• Observes viewModel.primarySpeaker for active speaker changes.
• Handles recording state (start/stop) and updates UI
• Handles PIP mode transitions and hides/show UI elements

ParticipantsFragment.kt

• Replaces the current participant list and triggers a UI refresh.
• Binds participant data to each row
• create the fragment with initial participant data.
• Updates the adapter with new participant data and colors
• Updates the in call participants with a header text